Improvement in pipe and kod-cuttee



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Witness es Inventor:

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1). FRANK ;HART1FORD, ornosroN, MASSACHUSETTS, ASSlGNOR T0 HIM:

SELF AND EDMUND '-1ARBELL,-OF sans PLACE.

Letters Patent No. 73,528, dated January 2], 1868.

IMPROVEMENT IN PIPE AND ROD-OUTTER.

TO ALL WHOM IT MAY CONCERN: V

Be it known that I, D. FItANK HARTFORD, of Boston, in the county of Suffolk, and State of Massachusetts} haveinvented rta ewand useful Improvements in Pipe-and Rod-Cutters; and I do'hcreby declare that the following is a full and exact description thereof, refcrence being had to the accompanying drawings, and to. the letters of reference marked thereon. I

The nature of my invention consists in an arrangement by which the cutting-tool of a pipe and rod-cutter may be adjusted, both longitudinally and laterally. v

To enable others skilled in the art to make and use my invention, I will-proceed to describe its construction and use. In the drawings- 'i Figure 1 is aside elevation of my improved cutter.

Figure 2 is a front elevation of the same.

Figure 3 is a longitudinal section of the same. I

I construct my improved cutter in the following manner: A B is a strong bar of. metal, bent and worked as shown in the drawings, the part B forming a hook, as shown in figs. 1 and 3, said hook serving as a holder forkeepi'ng in place the tube or rod to be cut. A forms a'shank, through which the screw P works, and also serves to hold one end of the cutter-holder G. The cutter-holder C is provided with a shank, C, fig. 3, which fits loosely in an orifice made in A, so that the cutter D, which is held to the holder by means of the set-screw K, is free to rise up and down, that is, it is capable of lateral adjustment by the screw 0. H H are two guides, between which the cutter-holder Cl and bolster E play. E is a bolster, which serves to support the holder C and the cutter D. The screw 0 works against the bolster E. L is a spring, which acts against the holder 0, andscrves to bear it down against the bolster E. The screw P operates against the cutter-holder C, to push it and the cutter D against the article to be cut. l t

It will be seen that in my invention, the cutter D has two adjustments, that is, a longitudinal one by the screw P, and. a lateral one'by the screw 0. The cutter is sharpened so to work in the same manner that the cutter of a turning lathe operates; it does notjam into the metal, but cuts it out.

To use my invention, the tube or rod of metal to be cut is placed as indicated by R. The cutter D is so adjusted as to cut into the tube or rod, in the same manner that a cutting iool of a turning-lathe operates upon arevolving cylinder, that is, a small chip or turningf is cut out at each revolution. Everything being properly adjusted, the cutter is revolved around the rod, being set up slightly at each revolution, until the rod is cut to a suflicient depth to render its fracture easy;

What I claim as my invention, and desire to secure by Letters Patent, is-

1. The cutter-holder 0, combined with the food-screw P and the adjusting-scrcw 0, made substantially as des cribed, and for the purpose set forth.

2. The cuttcr-holder O and knife D, combined with the supporting-bolster E, made substantially as described, and for the purpose set forth. I

I D. FRANK HARTFORD.

Witnesses:

Joe. S. Comer, FRANK G. PARKER. 

